CN106758860A - A kind of across cable walking cord clip handling erecting device and method - Google Patents
A kind of across cable walking cord clip handling erecting device and method Download PDFInfo
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- CN106758860A CN106758860A CN201710149056.7A CN201710149056A CN106758860A CN 106758860 A CN106758860 A CN 106758860A CN 201710149056 A CN201710149056 A CN 201710149056A CN 106758860 A CN106758860 A CN 106758860A
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- 238000009434 installation Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 10
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 5
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- 240000009087 Crescentia cujete Species 0.000 description 1
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- 235000009797 Lagenaria vulgaris Nutrition 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
A kind of across cable walking cord clip handling erecting device and method, device include two supports of inverted U that are vertically arranged and being parallel to each other, and each support includes a back timber, and back timber two ends connect a montant respectively；Connected by a bearing bar between the back timber middle part of two stands, two chain blocks are hung on bearing bar；Two cylinder wheels are provided between two stands, every montant is provided with an antifriction wheel；When cord clip is installed in handling, cord clip is suspended on main push-towing rope with loop wheel machine first, upper and lower two half portion of cord clip is kept a determining deviation and connected temporarily by fining twisted steel；Across cable walking cord clip handling erecting device across cable walking on main push-towing rope is crossed, cord clip is suspended in midair by two chain blocks to cord clip top, then run to specified location installation.
Description
Technical field
The invention belongs to cord clip of suspension bridge handling installation Technology field, and in particular to one kind is directly across in suspension bridge master
Handling cord clip runs to the equipment and construction method that design attitude is installed on cable.
Background technology
In Suspension bridge structure, installing Cable-clamp on main push-towing rope, for connecting main push-towing rope and hoist cable, be undertake bridge deck deadweight and
The important primary structure member of mobile load.At present, the installation of cord clip of suspension bridge generally carries out handling installation, it is necessary to make using cable crane overhead traveling crane
Make special overhead traveling crane, and the cable for overhead traveling crane walking is set up above main push-towing rope.There is problems with this method：
1st, make cable crane overhead traveling crane, set up overhead traveling crane walking cable, cause construction cost to increase；
2nd, need the long period to debug before the operation of cable crane overhead traveling crane, cause the engineering time to extend；
3rd, during cable crane overhead traveling crane handling cord clip, by cord clip two parts separate handling, during transport cord clip two parts away from
Overhead traveling crane centroidal distance, easy unbalance loading；Two parts are closed up into installation again after being transported to design attitude, more long, complex procedures are taken；
4th, cable crane overhead traveling crane handling cord clip is walked in main push-towing rope overhead, there is certain potential safety hazard.
The problem above that cord clip is present is installed for the handling of cable crane overhead traveling crane, in the urgent need to cord clip is installed in a kind of new handling
Equipment and construction method.
The content of the invention
Equipment and construction method are installed the purpose of the present invention is to propose to a kind of across the cable walking cord clip handling of suspension bridge, in suspension cable
During bridge cord clip handling installation, the installing Cable-clamp time can be shortened, construction consumptive material is reduced, improved working security.
For achieving the above object, a kind of across cable walking cord clip handling erecting device is provided first, it is characterised in that：
The support of inverted U that is vertically arranged including two and being parallel to each other, each support includes a back timber, back timber two ends point
A montant is not connected；It is connected by a bearing bar vertical with back timber between the back timber middle part of two stands, is hanged on the bearing bar
Hang two chain blocks；Two cylinder wheels are provided between two stands, the rotating shaft of each cylinder wheel is vertical with the montant of two stands, and
The two montants connection relative with two stands respectively of its two ends；Cylinder wheel lower section is located on every montant and is provided with an antifriction wheel, institute
The rotating shaft for stating antifriction wheel is parallel with montant.
For achieving the above object, also provide a kind of using above-mentioned across cable walking cord clip handling erecting device handling installation
The method of cord clip, it is characterised in that：
(1) the cord clip bolt that will connect upper and lower two half portion of cord clip in suspension bridge king-tower bottom is unloaded, big using two length
In the fining twisted steel of main push-towing rope diameter is interspersed in the screw of the upper and lower two half portions the same side of cord clip, the diameter of fining twisted steel is less than
The internal diameter of cord clip screw, nut of the external diameter more than cord clip screw internal diameter is installed at the two ends of fining twisted steel；Keep cord clip another
Side opening and A/F are more than main push-towing rope diameter；
(2) both sides of the cord clip first half are hung with a loop wheel machine, cord clip is hung near the main push-towing rope of tower top, and by rope
Be enclosed within cord clip on main push-towing rope by folder open side, and then cord clip open side is also connected with two fining twisted steels, and connected mode is with another
Side；Crane hook is unclamped to be suspended on main push-towing rope under Gravitative Loads by cord clip；
(3) across cable walking cord clip handling erecting device is lifted on main push-towing rope with loop wheel machine；By two cylinder wheels across in master
On cable, using across the cable walking cord clip handling erecting device of tower top hoist engine pull rope reverse drawing, draw it and walked on main push-towing rope, walk
Stop after directly over to cord clip；Cord clip is hung using two chain blocks on across cable walking cord clip handling erecting device bearing bar
Top half both sides are simultaneously lifted up, and cord clip is separated with main push-towing rope, in vacant state；
(4) control across cable walking cord clip handling that equipment carrying cord clip is installed by hoist engine and run to cord clip design and installation position
Put, stop walking, two chain block decentralization cord clips of control allow cord clip to be suspended on main push-towing rope；
(5) control two chain blocks to hang cord clip lower half both sides again to be lifted up, make cord clip lower half both sides and upper half
Portion both sides notch closes up, and fining twisted steel is displaced with cord clip bolt, and upper and lower two half portion of cord clip is connected；Release pulls calabash
Reed, installs equipment and returns to tower top handling and install next cord clip by across the cable walking cord clip handling of elevator machine travel.
The present invention has advantages below compared with prior art：
(1) it is cost-effective：Cord clip handling of the invention is installed equipment and is directly walked on main rope of suspension bridge, thus with it is existing
Method is compared, and can save the consumption of cable crane overhead traveling crane manufacturing cost and overhead traveling crane walking cable.
(2) duration is shortened：Cord clip is divided into two parts handling by existing cable crane overhead traveling crane, to design attitude recombinant peace
Dress, takes more long；The present invention is walked using chain block handling the whole series cord clip on main push-towing rope, directly will after running to design attitude
Cord clip leveling is tightened, simple to operate, and handling and installation rate are fast, substantially increase efficiency of construction.
(3) construction safety：Present invention handling entirety cord clip walking on main push-towing rope, is not influenceed by unbalance loading, eliminates safety hidden
Suffer from, improve working security.
Brief description of the drawings
It is across cable walking cord clip handling erecting device side view of the invention shown in Fig. 1；
It is across cable walking cord clip handling erecting device front view of the invention shown in Fig. 2；
It is side view of across the cable walking cord clip handling erecting device on main push-towing rope shown in Fig. 3；
It is front view of across the cable walking cord clip handling erecting device on main push-towing rope shown in Fig. 4；
It is structural representation that the upper and lower two half portions side of cord clip is connected by fining twisted steel shown in Fig. 5；
It is the view being suspended on cord clip with loop wheel machine on main push-towing rope shown in Fig. 6；
It is view that across cable walking cord clip handling erecting device is lifted on main push-towing rope shown in Fig. 7；
It is view of across the cable walking cord clip handling erecting device walking to cord clip top handling cord clip shown in Fig. 8；
It is view that cord clip is installed on main push-towing rope shown in Fig. 9；
It is across cable walking cord clip handling erecting device is returned after installing Cable-clamp view shown in Figure 10.
Specific embodiment
As shown in Figure 1 and Figure 2, across the cable walking cord clip handling erecting device of one kind that the present invention is provided, including two vertically set
The support 1 of the inverted U put and be parallel to each other, each support includes a back timber 111, and back timber two ends connect a montant 112 respectively；Two
It is connected by a bearing bar 2 vertical with back timber 111 between the back timber middle part of support 1, hanging two on the bearing bar 2 pulls
Cucurbit 3；Two cylinder wheels 4 are provided between two stands 1, the rotating shaft 5 of each cylinder wheel 4 is vertical with the montant 112 of two stands, and rolling
Two relative with two stands respectively montants 112 of cylinder wheel rotating shaft 5 two ends are connected；Cylinder wheel lower section is located on every montant 112 to be provided with
One antifriction wheel 6, the rotating shaft of the antifriction wheel 6 is parallel with montant.
It is view of across the cable walking cord clip handling erecting device on main push-towing rope 7, across cable row shown in Fig. 3, Fig. 4
Ropedancing bucket fortune erecting device across on main push-towing rope 7, and is walked by two cylinder wheels 4 on main push-towing rope.
Before across cable walking cord clip handling erecting device is used for cord clip handling installation, cord clip is suspended on by loop wheel machine first
Position on main push-towing rope near tower top, then by cord clip of being sling above across cable walking cord clip handling erecting device to cord clip, and transport
It is sent to the installing Cable-clamp position specified on main push-towing rope.When handling cord clip is gone to, to walk to directly over cord clip, it is necessary to its front rolling
Cylinder wheel crosses cord clip, due to the width of the width more than main push-towing rope of cord clip both sides, now needs across cable walking cord clip handling to install dress
The width put between two stands can cross cord clip more than cord clip width；When carrying cord clip walking is played, now load is heavier, is
It is in stable condition when keeping load to walk, the spacing reduced between two stands is at this moment needed again, so that the friction pulley clamping of both sides
Main push-towing rope both sides with keep stabilization.To meet the demand, it is desirable to which the spacing between two stands can be adjusted flexibly.The present invention passes through
In the following manner realizes above-mentioned requirements：
The activity of the bearing bar 2 is interspersed on the back timber 111 of two stands 1, the two ends of bearing bar 2 extend to the outer of two back timbers
Side, and bearing bar stop nut 8 is installed in load-bearing boom end；The activity of rotating shaft 5 of the cylinder wheel 4 is interspersed in two stands relative
Two montants on, rotating shaft two ends extend to the outside of two montants, and install rotating shaft stop nut at rotating shaft two ends.When need adjust
During spacing between whole two stands, by the stop nut for outwardly or inwardly rotating bearing bar and cylinder wheel rotating shaft two ends, you can
Realize the spacing adjustment of two stands 1.
Further, it is stable to ensure the overall structure of across cable walking cord clip handling erecting device, can also be by the two of two stands
It is connected by the locking pull bar 9 vertical with montant between the lower end of the relative montant 112 of root.The locking pull bar 9 activity is interspersed
Between two relative montant lower ends of two stands, locking pull bar two ends extend to the outside of two montants, at locking pull bar two ends
Pull bar stop nut is installed.During spacing between two stands are adjusted, the stop nut at locking pull bar two ends and bearing bar and rolling
The stop nut synchronous adjustment at cylinder wheel rotating shaft two ends.
During using above-mentioned across cable walking cord clip handling erecting device handling cord clip, specific method is as follows：
(1) as shown in figure 5, suspension bridge king-tower bottom will connect cord clip about 10 the cord clip bolt of two half portions unload, profit
It is interspersed in the screw of the upper and lower two half portions the same side of cord clip more than the steel of finish rolling screw thread 11 of main push-towing rope diameter with two length, finish rolling spiral shell
The diameter of line steel installs spiral shell of the external diameter more than cord clip screw internal diameter less than the internal diameter of cord clip screw at the two ends of fining twisted steel
It is female；Keep another side opening of cord clip and A/F is more than main push-towing rope diameter；
(2) as shown in fig. 6, hanging the both sides of the cord clip first half with a loop wheel machine, cord clip 10 is hung to the main push-towing rope 7 near tower top
Near；And cord clip 10 is enclosed within main push-towing rope 7 by cord clip open side, then cord clip open side is also connected with two fining twisted steels
Connect, the same opposite side of connected mode；Crane hook is unclamped to be suspended under Gravitative Loads on main push-towing rope 7 by cord clip 10；
(3) as shown in fig. 7, across cable walking cord clip handling erecting device is lifted on main push-towing rope 7 with loop wheel machine, by two rollers
Wheel 4 across on main push-towing rope 7, using across the cable walking cord clip handling erecting device of the reverse drawing of tower top hoist engine pull rope 12, draw its
Walked on main push-towing rope 7；As shown in figure 8, across cable walking cord clip handling erecting device stops after running to directly over cord clip 10, using across
Two chain blocks 3 on cable walking cord clip handling erecting device bearing bar 2 hang the top half both sides of cord clip 10 and carry upwards
Rise, cord clip 10 is separated with main push-towing rope 7, the cord clip first half, lower half do not contact with main push-towing rope, in vacant state；
(4) control across cable walking cord clip handling that equipment carrying cord clip 10 is installed by hoist engine pull rope 12 and run to cord clip
Design and installation position, stops walking, and two chain blocks 3 are transferred cord clip 10, allow cord clip to be suspended on main push-towing rope 7；Now cord clip is
Hung on main push-towing rope by the first half, lower half is suspended on first half lower section by fining twisted steel.
(5) as shown in figure 9, control two chain blocks hang 3 live the lower half both sides of cord clip 10 be lifted up, make cord clip lower half
Both sides close up with first half both sides notch, and fining twisted steel is displaced with cord clip bolt 13, by cord clip two half portions connection about 10
It is fixed, complete a handling for cord clip and install.As shown in Figure 10, chain block 3 is unclamped, across cable walking cord clip handling is adjusted again
Spacing between erecting device two stands 1 increases, and it is crossed cord clip, under returning to tower top handling and installation by elevator machine travel
One cord clip.
In the state of shown in above-mentioned Fig. 7, across cable walking cord clip handling erecting device, when handling cord clip 10 is gone in zero load
Walk to directly over cord clip, it is necessary to its front cylinder wheel 4 crosses cord clip, due to the width of the width more than main push-towing rope of cord clip both sides,
Now needing the width between across cable walking cord clip handling erecting device two stands 1 can cross cord clip more than cord clip width；Fig. 8
In the state of shown, when carrying cord clip walking is played, now load is heavier, to keep in stable condition during load walking, at this moment again
The spacing reduced between two stands 1 is needed, so that the friction pulley 6 of both sides is clamped in main push-towing rope both sides to keep stabilization.
It is adjustable to realize the spacing between two stands, can wear the bearing bar activity of across cable walking cord clip handling erecting device
It is inserted on the back timber of two stands, bearing bar two ends extend to the outside of two back timbers, and are provided with bearing bar limit in load-bearing boom end
Position nut；The rotating shaft activity of cylinder wheel is set to be interspersed on two relative montants of two stands, its two ends extends to the outer of two montants
Side, and rotating shaft stop nut is installed.Its two stands will first be adjusted after across cable walking cord clip handling erecting device is lifted on main push-towing rope
Between spacing more than the width between cord clip both sides, during walking unloaded so as to across cable walking cord clip handling erecting device, before it
Can be across cord clip；When across cable walking cord clip handling erecting device is run to directly over cord clip, then between shrinking between two stands
Away from, and inwardly tighten the stop nut at bearing bar and cylinder wheel rotating shaft two ends, antifriction wheel is clamped in main push-towing rope both sides, so as to across
When cable walking cord clip handling erecting device carries cord clip walking, can keep balancing and stablize.
To ensure the overall structure stabilization of across cable walking cord clip handling erecting device, and ensure across cable walking safety, may be used also
By the lock vertical with montant between two lower ends of relative montant of across cable walking cord clip handling erecting device two stands
Bar connection is strained at, locking pull bar activity is interspersed between two relative montant lower ends of two stands, locking pull bar two ends extend
To the outside of two montants, and pull bar stop nut is installed at locking pull bar two ends；To lifting across cable walking cord clip handling on main push-towing rope
During erecting device, two locking pull bars are first pulled down, after across cable walking cord clip handling erecting device is lifted on main push-towing rope, then installation locking
Pull bar；During spacing between across the cable walking cord clip handling erecting device two stands of adjustment, the stop nut at locking pull bar two ends and
Bearing bar and cylinder wheel rotating shaft synchronous adjustment.
Claims (6)
1. across the cable walking cord clip handling erecting device of one kind, it is characterised in that：U that is vertically arranged including two and being parallel to each other
The support of type, each support includes a back timber, and back timber two ends connect a montant respectively；Pass through one between the back timber middle part of two stands
The bearing bar vertical with back timber is connected, and two chain blocks are hung on the bearing bar；Two cylinder wheels are provided between two stands,
The rotating shaft of each cylinder wheel is vertical with the montant of two stands, and the two montants connection relative with two stands respectively of its two ends；Every
Cylinder wheel lower section is located on montant and is provided with an antifriction wheel, the rotating shaft of the antifriction wheel is parallel with montant.
2. across cable walking cord clip handling erecting device according to claim 1, it is characterised in that：The bearing bar activity is worn
It is inserted on the back timber of two stands, bearing bar two ends extend to the outside of two back timbers, and are provided with bearing bar limit in load-bearing boom end
Position nut；The rotating shaft activity of the cylinder wheel is interspersed on two relative montants of two stands, and its two ends extends to two montants
Outside, and rotating shaft stop nut is installed.
3. across cable walking cord clip handling erecting device according to claim 2, it is characterised in that：Two of two stands are relative
Montant lower end between be connected by the locking pull bar vertical with montant；It is relative that the locking pull bar activity is interspersed in two stands
Two montant lower ends between, locking pull bar two ends extend to the outside of two montants, and are provided with pull bar at locking pull bar two ends
Stop nut.
4. across the cable walking cord clip handling installation method of one kind, dress is installed using across the cable walking cord clip handling described in claim 1
Putting carries out cord clip handling installation, it is characterised in that：
(1) the cord clip bolt that will connect upper and lower two half portion of cord clip in suspension bridge king-tower bottom is unloaded, using two length more than master
The fining twisted steel of cable diameter is interspersed in the screw of the upper and lower two half portions the same side of cord clip, and the diameter of fining twisted steel is less than cord clip
The internal diameter of screw, nut of the external diameter more than cord clip screw internal diameter is installed at the two ends of fining twisted steel；Cord clip opposite side is kept to open
Mouthful and A/F be more than main push-towing rope diameter；
(2) both sides of the cord clip first half are hung with a loop wheel machine, cord clip is hung near the main push-towing rope of tower top, and opened by cord clip
Be enclosed within cord clip on main push-towing rope by mouth side, then cord clip open side is also connected with two fining twisted steels, the same opposite side of connected mode；
Crane hook is unclamped to be suspended on main push-towing rope under Gravitative Loads by cord clip；
(3) across cable walking cord clip handling erecting device is lifted on main push-towing rope with loop wheel machine；By two cylinder wheels across on main push-towing rope,
Using across the cable walking cord clip handling erecting device of tower top hoist engine pull rope reverse drawing, draw it and walked on main push-towing rope, run to rope
Stop after directly over folder；Cord clip upper half is hung using two chain blocks on across cable walking cord clip handling erecting device bearing bar
Part both sides are simultaneously lifted up, and cord clip is separated with main push-towing rope, in vacant state；
(4) control across cable walking cord clip handling that equipment carrying cord clip is installed by hoist engine and run to cord clip design and installation position,
Stop walking, two chain block decentralization cord clips of control allow cord clip to be suspended on main push-towing rope；
(5) control two chain blocks to hang cord clip lower half both sides again to be lifted up, make cord clip lower half both sides and the first half two
Side channel mouthful closes up, and fining twisted steel is displaced with cord clip bolt, and upper and lower two half portion of cord clip is connected；Unclamp chain block,
Equipment is installed by across the cable walking cord clip handling of elevator machine travel to return to tower top handling and next cord clip is installed.
5. across cable walking cord clip handling installation method according to claim 4, it is characterised in that：Across the cable walking cord clip
The bearing bar activity of handling erecting device is interspersed on the back timber of two stands, and bearing bar two ends extend to the outside of two back timbers, and
Bearing bar stop nut is installed in load-bearing boom end；The rotating shaft activity of the cylinder wheel is interspersed in two stands relative two and erects
On bar, its two ends extends to the outside of two montants, and installs rotating shaft stop nut；Across cable walking cord clip handling erecting device is hung
After being attached on main push-towing rope, the spacing between its two stands is first adjusted more than the width between cord clip both sides, so as to across cable walking cord clip
During the zero load walking of handling erecting device, its front can be across cord clip；Across cable walking cord clip handling erecting device is running to cord clip just
During top, then the spacing between two stands is shunk, and inwardly tighten the stop nut at bearing bar and cylinder wheel rotating shaft two ends, make to prevent
Friction pulley is clamped in main push-towing rope both sides, so as to across cable walking cord clip handling erecting device carry cord clip walk when, can keep balance with
Stabilization.
6. across cable walking cord clip handling installation method according to claim 5, it is characterised in that：Across the cable walking cord clip
It is connected by the locking pull bar vertical with montant between two lower ends of relative montant of handling erecting device two stands, it is described
Locking pull bar activity is interspersed between two relative montant lower ends of two stands, and locking pull bar two ends extend to the outer of two montants
Side, and pull bar stop nut is installed at locking pull bar two ends；During to lifting across cable walking cord clip handling erecting device on main push-towing rope,
Two locking pull bars are first pulled down, after across cable walking cord clip handling erecting device is lifted on main push-towing rope, then installation locking pull bar；Adjustment across
During width between cable walking cord clip handling erecting device two stands, the stop nut and bearing bar and roller at locking pull bar two ends
The stop nut synchronous adjustment at wheel rotating shaft two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149056.7A CN106758860B (en) | 2017-03-13 | 2017-03-13 | Across the cable walking cord clip handling mounting device of one kind and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149056.7A CN106758860B (en) | 2017-03-13 | 2017-03-13 | Across the cable walking cord clip handling mounting device of one kind and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106758860A true CN106758860A (en) | 2017-05-31 |
| CN106758860B CN106758860B (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710149056.7A Expired - Fee Related CN106758860B (en) | 2017-03-13 | 2017-03-13 | Across the cable walking cord clip handling mounting device of one kind and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106758860B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642049A (en) * | 2017-08-23 | 2018-01-30 | 柳州欧维姆机械股份有限公司 | A kind of device and its installation method changed for main rope of suspension bridge cord clip |
| CN109338888A (en) * | 2018-11-12 | 2019-02-15 | 中国十七冶集团有限公司 | A kind of main rope of suspension bridge pre-tightens cable device and application method |
| CN110562396A (en) * | 2019-10-10 | 2019-12-13 | 中船黄埔文冲船舶有限公司 | Accommodation ladder winding and unwinding devices |
| CN113565002A (en) * | 2021-06-30 | 2021-10-29 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Fastening and adjusting device for main cable of cross-tensioned steel rope |
| CN113848054A (en) * | 2021-11-30 | 2021-12-28 | 中国能源建设集团山西电力建设有限公司 | Method for testing load-bearing performance of chain block |
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|---|---|---|---|---|
| CN107642049A (en) * | 2017-08-23 | 2018-01-30 | 柳州欧维姆机械股份有限公司 | A kind of device and its installation method changed for main rope of suspension bridge cord clip |
| CN107642049B (en) * | 2017-08-23 | 2023-07-07 | 柳州欧维姆机械股份有限公司 | Device for replacing main cable clamp of suspension bridge and installation method of device |
| CN109338888A (en) * | 2018-11-12 | 2019-02-15 | 中国十七冶集团有限公司 | A kind of main rope of suspension bridge pre-tightens cable device and application method |
| CN110562396A (en) * | 2019-10-10 | 2019-12-13 | 中船黄埔文冲船舶有限公司 | Accommodation ladder winding and unwinding devices |
| CN110562396B (en) * | 2019-10-10 | 2021-10-22 | 中船黄埔文冲船舶有限公司 | Accommodation ladder winding and unwinding devices |
| CN113565002A (en) * | 2021-06-30 | 2021-10-29 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Fastening and adjusting device for main cable of cross-tensioned steel rope |
| CN113848054A (en) * | 2021-11-30 | 2021-12-28 | 中国能源建设集团山西电力建设有限公司 | Method for testing load-bearing performance of chain block |
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| CN106758860B (en) | 2019-01-25 |
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